scholarly journals Eucalyptus variegated beetle: genetic diversity of New Zealand and Australian collections

2018 ◽  
Vol 71 ◽  
pp. 352
Author(s):  
Aymee S.R. Lewis ◽  
Toni M. Withers ◽  
Helen F. Nahrung ◽  
Rebecca L. McDougal ◽  
Chris A.M. Reid ◽  
...  
Keyword(s):  
New Zealand ◽  
Biological Control Agent ◽  
Control Agent ◽  
Forestry Sector ◽  
Eastern Australia ◽  
Plantation Species ◽  
C Subunit ◽  
Cluster 2 ◽  
Paropsisterna Agricola ◽  
Selection Of

Paropsisterna variicollis, the eucalyptus variegated beetle, was first detected in New Zealand in 2016. It threatens a growing eucalyptus forestry sector through larvae and adults causing significant defoliation to important plantation species. This work aimed to clarify the identification and origin of the New Zealand incursion to inform selection of suitable biological control agent(s). Australian and New Zealand specimens from the Paropsisterna obovata-variicollis-cloelia species complex were analysed by PCR and sequencing of two genetic loci, cytochrome c subunit I (COI) and cytochrome b (Cyt b). Molecular analysis of both genetic regions showed three major clusters of diversity. Cluster 1, proposed as Paropsisterna variicollis, had maximum 1.3% genetic variation and was collected from New Zealand, Western Australia and from geographically diverse locations in eastern Australia. Taxonomic results identified distinctive phenotypes of other closely related beetle species, assisting in proposing Cluster 2 as Paropsisterna near decolorata and Cluster 3 as Paropsisterna agricola. Molecular results were compared to morphological structures on adult beetles.

scholarly journals Investigating the potential of Eadya paropsidis (Braconidae) from Tasmania as a biocontrol agent for Paropsis charybdis in New Zealand

2012 ◽  
Vol 65 ◽  
pp. 292-292 ◽  
Author(s):  
T.M. Withers ◽  
G.R. Allen ◽  
V.S. Patel ◽  
D. Satchell ◽  
G. Manley
Keyword(s):  
New Zealand ◽  
Biological Control Agent ◽  
Parasitoid Wasp ◽  
Leaf Beetle ◽  
Control Agent ◽  
Test Method ◽  
Collaborative Project ◽  
Tortoise Beetle ◽  
Host Specificity Testing ◽  
Paropsisterna Agricola

Despite considerable efforts the eucalyptus tortoise beetle Paropsis charybdis continues to defoliate Eucalyptus nitens plantations throughout New Zealand preventing expansion of this forest resource or requiring constant management through aerial insecticide application A parasitoid wasp of the springtime larval stage of the eucalyptus leaf beetle Paropsisterna agricola (Chapuis) (Chrysomelidae) in Tasmania is being investigated as a potential biological control agent for New Zealand The potential agent Eadya paropsidis Huddleston and Short (Braconidae) was caught as adults on the wing from E nitens plantations in northern Tasmania and brought into the laboratory in Hobart for preliminary host specificity testing Using a sequential nochoice test method to examine the response of individual females 9 of the 10 female parasitoids attacked P agricola while 7 of those 9 attacked P charybdis larvae Those P charybdis larvae that were attacked proved to be a highly suitable physiological host for E paropsidis development emerging as a larger sized parasitoid larva from P charybdis than from P agricola This potential agent will be further evaluated in a collaborative project with New Zealand eucalyptus growers and the Sustainable Farming Fund

Stagonospora atriplicis. [Descriptions of Fungi and Bacteria].

2005 ◽  
Author(s):  
T. V. Andrianova
Keyword(s):  
South Africa ◽  
Biological Control ◽  
Czech Republic ◽  
New Zealand ◽  
Geographical Distribution ◽  
Biological Control Agent ◽  
Control Agent ◽  
Allenrolfea Occidentalis ◽  
Syzygium Guineense

Abstract A description is provided for Stagonospora atriplicis, a potential biological control agent of Atriplex and Chenopodium weeds. Information is included on the disease caused by the organism, its transmission, geographical distribution (Kenya, South Africa, Zimbabwe, Canada, USA, Colombia, Cyprus, Georgia, Kyrgyzstan, Russia, Australia, New Zealand, Austria, Belgium, Bulgaria, Czech Republic, Estonia, France, Germany, UK, Hungary, Italy, Latvia, Romania, Sweden, Ukraine and Hawaii) and hosts (Allenrolfea occidentalis, Atriplex spp., Chenopodium spp. and Syzygium guineense).

scholarly journals First Report of Phragmidium violaceum Infecting Himalaya and Evergreen Blackberries in North America

2005 ◽  
Vol 6 (1) ◽  
pp. 25 ◽  
Author(s):  
N. Osterbauer ◽  
A. Trippe ◽  
K. French ◽  
T. Butler ◽  
M. C. Aime ◽  
...  
Keyword(s):  
South Africa ◽  
Biological Control ◽  
New Zealand ◽  
North America ◽  
Biological Control Agent ◽  
Control Agent ◽  
First Report ◽  
Official Report

Phragmidium violaceum occurs on several species of Rubus, including R. armeniacus, R. fruticosus agg., and R. laciniatus, in Europe, South Africa, Iran, and Iraq, and has been introduced as a biological control agent for invasive blackberries in Australia, New Zealand, and Chile. To our knowledge, this is the first official report of P. violaceum infecting Himalaya and evergreen blackberries in North America. Accepted for publication 16 September 2005. Published 23 September 2005.

Notes on parasites of Pentatomidae and Scutelleridae (Hemiptera-Heteroptera) in Middle East countries, with observations on biological control

1962 ◽  
Vol 53 (2) ◽  
pp. 241-256 ◽  
Author(s):  
E. S. Brown
Keyword(s):  
Biological Control ◽  
Middle East ◽  
Host Selection ◽  
Biological Control Agent ◽  
Control Agent ◽  
Sunn Pest ◽  
Eurygaster Integriceps ◽  
Middle East Countries ◽  
Central Turkey ◽  
Selection Of

A number of observations were made on parasites of certain Pentatomoids (sunn pest) attacking wheat in Middle East countries, during the course of other work on these pests. The principal host species studied were Eurygaster integriceps Put., E. maura (L.) and Aelia rostrata Boh. The data concern both Dipterous (Tachinid) endoparasites of the adult bugs, and also Hymenopterous (Scelionid) egg-parasites; the observations were made principally in central Turkey, and in the Varamine district of Iran. A few observations on predators were made also.The data concerning Tachinids consist of host records for six species of parasites. In no case observed by the author did these parasites appear to be of great importance in reducing the numbers of sunn pest; the same is true of the few instances of predators recorded.Observations were made on six species of Scelionid egg-parasites (five species of Asolcus and one of Hadronotus), five of which were bred from eggs of four species of Pentatomoid hosts collected in the field. The species concerning which the most comprehensive data were obtained were Asolcus rufiventris (Mayr), A. semistriatus (Nees) and A. vassilievi (Mayr). Egg-parasites are well known to be more efficacious in reducing sunn-pest populations, and A. semistriatus has been extensively used in Iran as a biological control agent. The data obtained enabled some ideas which are of importance for the use of egg-parasites in biological control to be formed and discussed. These concern principally (a) the susceptibilities of different hosts to parasitisation; (b) host selection by parasites; (c) the selection of a species of parasite most suitable for biological control in a particular area.

Rostropria, a new genus of Opisthognathous Diapriine wasp from Australia, and notes on the genus Neurogalesus (Hymenoptera : Proctotrupoidea : Diapriidae)

1989 ◽  
Vol 3 (5) ◽  
pp. 523 ◽  
Author(s):  
JW Early ◽  
ID Naumann
Keyword(s):  
Biological Control ◽  
New Species ◽  
Sugar Cane ◽  
New Genus ◽  
Biological Control Agent ◽  
Control Agent ◽  
Eastern Australia

Rostropria, gen. nov., comprising six new species (casta, garbo, gondola, inopicida, simplex and spiniventris) from eastern Australia, is most closely related to Neurogalesus Kieffer. The palpal formula is variable within Rostropria. R. inopicida is a parasite of the sugarcane soldier fly, Inopus rubriceps (Macquart) (Stratiomyidae), and a potential biological control agent for this pest of pastures and sugar cane. Euhoplopria Dodd is synonymised with Neurogalesus and the three described species (E. carinatifrons Dodd, E. lativentris Dodd, E. emargipennis Dodd) are transferred to Neurogalesus.

Sign in / Sign up

Export Citation Format

Share Document